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/*
20140727
Jan Mojzis
Public domain.
*/
#include "crypto_core_hsalsa20.h"
#include "crypto_stream_salsa20.h"
#include "cleanup.h"
#include "crypto_stream_xsalsa20.h"
static const unsigned char sigma[16] = "expand 32-byte k";
int crypto_stream_xsalsa20_tinynacl_xor(unsigned char *c, const unsigned char *m, unsigned long long l, const unsigned char *n, const unsigned char *k) {
unsigned char subkey[32];
crypto_core_hsalsa20(subkey, n, k, sigma);
crypto_stream_salsa20_xor(c, m, l, n + 16, subkey);
cleanup(subkey);
return 0;
}
int crypto_stream_xsalsa20_tinynacl(unsigned char *c, unsigned long long l, const unsigned char *n, const unsigned char *k) {
return crypto_stream_xsalsa20_tinynacl_xor(c, 0, l, n, k);
}
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